Linear alkylbenzene sulfonate Organic components such as linear alkylbenzene sulfonates (LAS) are the major and most abundant contributing anionic surfactant constituents found in laundry detergents. The aim of the Commercial linear alkylbenzene sulphonates (LAS) is not a single compound but a mixture of compounds, all subterminal substituted, linear, alkyl chains (C 10 –C 14) carrying a 4-sulphophenyl moiety. LAS concentrations in fish muscles. In the present study, a microbial fuel cell (MFC) based biosensor is developed to quantitively determine the LAS concentration in wastewat Feb 1, 2020 · Chronic effects of linear alkyl benzene sulfonate (LAS) and ammonia on rainbow trout (Oncorhynchus mykiss) fry at water criteria limits Water Res. Acid slurry merupakan bahan baku kunci dalam pembuatan serbuk deterjen . Linear alkylbenzenes (LAB) and branched alkylbenzenes (BAB) are families of alkylbenzene used to prepare synthetic sulfonates. The hydraulic detention ti … Keywords: linear alkylbenzene, detal process, linear alkylbenzene sulfonate (LAS), linear olefins, biodegradable detergent and surfactant DOI: 10. However, researchers have devoted much attention to the potential risks of emerging contaminants, while placing less effort on historical pollutants, such as the surfactant, linear-alkylbenzene-sulfonate (LAS), which is a major component of widely used synthetic detergents worldwide. 3. Many studies The purpose of this work was to assess the degradation of linear alkylbenzene sulfonate (LAS) in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor. This chapter will review the two predominant commercial alkylation routes for LAB production: homogenous acid alkylation using hydrofluoric (HF) acid and solid acid alkylation. Feb 1, 2022 · Oxygen-based membrane biofilm reactor (O 2-MBfR) is a unique technique for high linear alkylbenzene sulfonate (LAS)-containing greywater (GW) treatment. Brunner et al. Hence, we require another type of thickener to adjust the viscosity of LAS. Chemical Name: Linear Alkylbenzene Sulfonate (LAS) 2. In 2003, the global consumption of LAS, extensively utilized in personal care and cleaning products [3] was estimated to be 18. Eduardo González-Mazo, , Maarten Honing and, Damia Barceló, , Abelardo Gómez-Parra. According to recent statistical data, it comprises about 50% of all A method of producing a linear alkylbenzene that includes introducing an olefin into an aromatic stream to form a mixture; processing the mixture in a shear device at a shear rate greater than about 20,000 s −1 to form a dispersion; and reacting the dispersion in the presence of a catalyst in a reactor vessel to form a linear alkylbenzene product stream, wherein the reactor vessel is Nov 1, 2024 · Abstract Sodium alkylbenzene sulfonates (ABS), or linear alkylbenzene sulfonates (LAS), are among the most common synthetic anionic surfactants and water pollutants, capable of causing both acute and chronic toxic effects on aquatic organisms. The commercial product is a mixture of homologues containing carbon atoms between 10 and 13 atoms. Its chemical formula is typically represented as C6H5CnH2n+1, where ‘n’ represents the number of carbon atoms in the alkyl chain, usually between 10 and 14. Sep 7, 2021 · The anionic surfactant linear alkylbenzene sulfonate (LAS) is a major chemical constituent of detergent formulation. 2011; Kruszelnicka et al. 4. Monitoring Long-Chain Intermediate Products from the Degradation of Linear Alkylbenzene Sulfonates in the Marine Environment by Solid-Phase Extraction Followed by Liquid Chromatography/Ionspray Mass Spectrometry. Identification Product form : Mixtures Product name : Linear Alkylbenzene Sulfonate, 1mL = 1mg Product code : LC16150 Jul 19, 2012 · Anionic surfactants, the earliest and the most common surfactants in detergent and cosmetic product formulations contribute significantly to the pollution profile of the ecosystem. Feb 24, 2022 · Linear alkylbenzene (LAB) is a cost-effective and biodegradable intermediate in the production of detergents and surfactants. Linear alkylbenzene sulphonate (LAS) is an anionic surfactant. 40 compared to muscles in fish of control group with MSDS LINEAR ALKYLBENZENE SULFONATE (LAS) SOLUTIONS, including SpectroPure brand For RICCA, SpectroPure, Red Bird, and Solutions Plus Brands Section 1: Chemical Product and Company Identification Material Safety Data Sheet Catalog Number: 4348, 4350, SL053030, SL053035 Product Identity: Surfactant wastewater is usually difficult to treat due to its toxicity and poor biodegradability. 1. 2 1/25/2022 (Revision date) EN (English US) 1/10 SECTION 1: Identification 1. In this study, treatment of the wastewater collected from a daily chemical plant by the combi … The efficiency of linear alkylbenzene sulfonate as surfactant is clearly established, and it is one of the safest and most cost-effective products in widespread commercial use. sulfonate. The current method for industrial production of ABSA includes sulfonation of linear alkylbenzene (LAB) with sulfur trioxide in tubular falling film reactors. aureus and K. g. [9] Sep 29, 2021 · The linear alkylbenzene sulfonate (LABS), alkyl ethoxy sulphate (AES), alkyl sulphate (AS), alkylphenol ethoxylate (APE), alkyl ethoxylates (AE), and quaternary ammonium-based structures (QAC) are the most sourced and used surfactants globally (Borghi et al. LAS is the most important anionic surfactant and this surfactant is thus a major substance released into wastewater treatment plants. Linear alkylbenzene sulfonate (LAS) used in this study was purchased from Wako Pure Chemical Industries, Ltd. In this study, we investigated the effect of LAS (CAS No. Linear Alkylbenzene Sulfonate Standard, 1000 ppm LAS 4350 4350-1, 4350-16, 4350-32, 4350-4 General Laboratory Reagent 1. It's high foaming, fast wetting, and emulsification properties make BIO-SOFT D-40 suitable for use in most cleaning formulations where foam is desirable. 41 ± 0. Linear alkylbenzene sulfonates (LAS), a major chemical constituent of detergents, forms an imperative group of anionic surfactants. LAS bisa terdegradasi sampai 90 persen. Learn about the history, synthesis, production, and environmental impact of linear alkyl benzene sulfonates (LABS), a type of anionic surfactant used in laundry and cleaning products. Commercial linear alkylbenzene products are currently manufactured via alkylation of benzene with either chlorinated linear paraffins or linear olefins. LAS Jul 19, 2024 · Linear alkylbenzene sulfonate (LAS), a biodegradable surfactant, is manufactured from sulfonation of linear alkyl benzene. Dec 1, 1990 · This article is cited by 97 publications. In this study, an improved biological turntable with a symbiotic system of bacteria and microalgae was primarily used to enhance LINEAR ALKYLBENZENE SULFONATE. Akan tetapi prorsesnya sangat lambat, karena dalam memecah bagian ujung rantai kimianya khususnya ikatan o-mega harus diputus dan butuh proses beta oksidasi. GIỚI THIỆU VỀ LINEAR ALKYLBENZENE SULFONATE: 2. Level of Concern . , 2007, Scott and Jones, 2000). However, the efficiency of traditional wastewater treatment cannot meet the growing demand. Product Cation Active content Aims: To isolate and identify linear alkylbenzene sulfonate (LAS)-degrading bacteria from Río de la Plata and adjacent waters, and to assay their degradation capability as a consortium and as single organisms. cereus was the most resistant bacteria. SEARCH PRODUCTS. LAS replaced branched dodecylbenzene sulfonates, which were phased out because they biodegrade more slowly. Compare branched and linear alkylbenzene sulfonates, their production, properties and environmental fate. The selective determination of sodium alkylbenzene sulfonates as a distinct class of anionic surfactants in complex natural matrices is feasible by gas Linear alkylbenzene sulfonate (LAS) is a common organic pollutant in freshwater environments. Nov 30, 2001 · Dodecylbenzene sulfonate was largely replaced by linear alkylbenzene sulfonate by the late 1960s in the United States, Japan, and many European countries. Please Login or Subscribe to Access the Linear Alkylbenzene Sulfonate Price Chart Data . and focused on the effects on growth Background, aim, and scope: Linear alkylbenzene sulfonate (LAS) is the most used anionic surfactant in a worldwide scale and is considered a high-priority pollutant. . Linear Alkyl Benzene (LAB) is an organic compound consisting of a benzene ring attached to a linear alkyl chain. Bahan kimia ini dalam bidang industri banyak digunakan sebagai bahan aktif pembuatan deterjen sintetis, selain itu juga banyak digunakan The linear mono-olefins react with benzene in the existence of the catalyst to produce LAB which is used to produce linear alkylbenzene sulfonate (LAS), as a biodegradable detergent. General chemical structure of linear alkylbenzene sulfonate (LASs), where x and y corresponds with the number of CH 2 on each side of the benzene sulphonate group (7 • x + y • 10). Print Evidence. Furthermore, by the late 1970s, linear alkylbenzene sulfonate capacity increased rapidly with facilities being installed around the world. The high demand from the surfactant sector, which is a key user of linear alkyl benzene sulfonate, pushed prices upward, particularly in the latter part of the quarter. 3. LAS is a biodegradable alternative surfactant for branched alkylbenzene sulfonate (BAS) by replacing them in disinfectant detergents used throughout in the world (Table 13. Under aerobic conditions LAS degrade rapidly and concentration of LAS has been found very low in effluents from aerobic sewage treatment plants (STP). A separate physico-chemical or biochemical treatment method achieves a satisfactory effect with difficulty. No. C. LAS solutions used for all experiments were prepared Aug 10, 2022 · The alkylbenzene portion of these anions is lipophilic and the sulfonate is hydrophilic. Feb 4, 2018 · A linear alkylbenzene sulfonic acid product comprising a linear alkylbenzene sulfonic acid and from about 0. , the sodium salt of secondary alkyl sulfonate (NaSAS). This paper also discusses the challenges and opportunities of using LABS in the soap industry. Name (IUPAC name) See A. 1 The linear alkyl chain typically consists of 10–13 carbon units. May 29, 2024 · Overview of Linear Alkyl Benzene (LAB) Definition and Chemical Structure. Produksi Linear Alkylbenzene Sulfonate di Indonesia Berikut tersaji data kapasitas produksi pabrik Linear Alkylbenzene Sulfonate yang telah berdiri di Indonesia. We observed earlier that certain conformational changes taking place in aromatic anionic surfactants (NaLAS) upon micellization can be brought 2. Four anaerobic fluidized bed reactors filled with activated carbon (R1), expanded clay (R2), glass beads (R3) and sand (R4) were tested for anaerobic degradation of LAS. ChemSpider record containing structure, synonyms, properties, vendors and database links for Alkylbenzene sulfonate, GHNRTXCRBJQVGN-UHFFFAOYSA-N Jan 7, 1994 · The efficiency of linear alkylbenzene sulfonate as surfactant is clearly established, and it is one of the safest and most cost-effective products in widespread commercial use. The anionic surfactants such as linear alkylbenzene sulfonic acid and sodium lauryl ether sulfate act as bacteriostatic on Bacillus spp. Tabel 3. sintetik dan deterjen cair. It was introduced in 1964 as the readily biodegradable replacement for highly branched alkylbenzene sulphonates (ABS). After use, LASs are discharged into wastewater treatment plants and dispersed into the environment through effluent discharge into surface waters and sludge Linear Alkylbenzene Sulfonate, 1mL = 1mg Safety Data Sheet Issue date: 2/20/2015 Revision date: 1/25/2022 Supersedes: 6/6/2017 Version: 1. 2019). Feb 1, 2020 · Elimination of LAS (linear alkyl benzene sulfonate) during sewage treatment, drying and composting of sludge and soil amending processes; P. Graphical Presentation of LC 50 Value in Nile tilapia, Oreochromis niloticus with Linear Alkylbenzene Sulfonate (LAS). 3 Data Kapasitas Produksi Linear Alkylbenzene Sulfonate di Indonesia Produksi Kapasitas (ton/tahun) PT Sinar Antjol 32. Nevertheless, detergents are Nov 17, 2019 · Linear Alkylbenzene Sulfonate dengan rumus C12H25C6H4-SO3Na suatu senyawa yang dihasilkan dengan mereaksikan antara Linear Alkylbenzene dan oleum di dalam reaktor terbentuklah Linear Alkylbenzene Sulfonate. co. 05 to 0. %PDF-1. CAS Descriptor Relatively consistent mixture of homologues with predominately linear Sep 15, 2023 · Freshwater biodiversity and ecosystem services might decline due to exposure to chemicals. Among anionic surfactants used in detergent products, the sodium salt of linear alkylbenzene sulfonate (NaLAS) is the only surfactant belonging to the aromatic class; the others are aliphatic, e. Details of the Supplier of the Safety Data Sheet Company: Address: Telephone: 1. and Meyer, U. As a class of chemicals, they are generally mixtures of closely related isomers and homologs. Jun 22, 2020 · LINEAR ALKYL BENZENE SULFONIC ACID/ SODIUM ALKYL BENZENE SULFONATE / LABSA/ SODIUM DODYL BENZENE SULFONATE Anionic surfactant used in all cleaning & detergent products like dishwashing liquid, all purpose cleaner, laundry liquid , car shampoo, degreasers and in so many industrial cleaners. Linear Alkylbenzene Sulfonate Price Chart. Branched chain ABS biodegrades very slowly and therefore contributes to polluting lakes and streams by forming relatively stable foams. Beli koleksi Linear Alkylbenzene Sulfonate online lengkap edisi & harga terbaru Januari 2025 di Tokopedia! ∙ Promo Pengguna Baru ∙ Kurir Instan ∙ Bebas Ongkir ∙ Cicilan 0%. Generally, biodegradation process is applied to remove LAS. (2002) Toxicity of Linear Alkylbenzene Sulfonate in Anaerobic Digestion: Influence of Exposure Time. The main methods for the production of LAB, including HF and Detal processes were studied and compared with each other. H. pneumoniae were the most sensitive bacteria while B. LAS contaminating aquatic ecosystems as a potential toxic pollutant, was investigated in the present study for acute toxicity. id ABSTRACT BIO-SOFT D-40 is a sodium salt of linear alkylbenzene sulfonic acid. 4 %âãÏÓ 1 0 obj /Type /Page /Parent 1102 0 R /Resources 2 0 R /Contents 3 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 2 0 obj /ProcSet [ /PDF /Text ] /Font /TT2 1150 0 R /TT4 1149 0 R /TT5 1070 0 R /TT7 1071 0 R >> /ExtGState /GS1 1156 0 R >> /ColorSpace /Cs6 1153 0 R >> >> endobj 3 0 obj /Length 4114 /Filter /FlateDecode >> stream H‰ÜW]Säº }Ÿ Oct 1, 2006 · In this study the removal and degradation of anionic surfactant linear alkylbenzene sulfonate (LAS) and xenobiotic organic compounds in a commercial laundry wastewater was evaluated in anaerobic 90194-45-9 290-656-6 C10-13 Alkyl derivatives benzene sulfonic acid, sodium salt 127184-52-5 4-C10-13-sec Alkyl derivatives benzene sulfonic acid, sodium salt B. In the present study, LAS concentration in fish muscles showed high significant increase (p ≤ 0. [2] In the most common route benzene is alkylated by long chain monoalkenes (e. In the present study, a microbial fuel cell (MFC) based biosensor is developed to quantitively determine the LAS concentration in wastewater. Sep 15, 2023 · Freshwater biodiversity and ecosystem services might decline due to exposure to chemicals. 25155-30-0) at non cytotoxic concentrations on huma … Sep 15, 2024 · Linear alkylbenzene sulfonate (LAS) is the most widely consumed anionic surfactant worldwide, with a ubiquitous presence in municipal sewage and industrial wastewaters [1], [2]. Rittmann f Mösche, M. The linear mono-olefi ns react with benzene in the existence of the catalyst to produce LAB which is used to produce linear alkylbenzene sulfonate (LAS), as a biodegradable deter-gent. Water Research, 36, 3253-3260. 2 million tons [3] . ORIGINAL ARTICLE Analysis of Linear Alkylbenzene Sulfonate in Laundry Wastewater by HPLC–UV and UV–Vis Spectrophotometry Terelle Ramcharan1 • Ajay Bissessur1 Received: 4 June 2015/Accepted: 16 November 2015/Published online: 22 December 2015 Jan 1, 2009 · Linear alkylbenzene sulfonate (LAS) biodegrades easily and loses its tensioactive properties quickly through a primary biodegradation process, as many works of literature testify. Linear alkylbenzene sulfonate is an anionic surfactant (surface active agent) which was introduced in 1964 as a more readily biodegradable replacement for highly branched alkylbenzene sulfonate (ABS). 1 ). Linear alkylbenzene sulfonate (LAS), developed to become a biodegradable replacement for nonlinear alkyl benzene sulfonate (BAS), has considerably replaced BAS in household detergents throughout the world. The primary difference lies in their molecular structure. Bahan kimia ini dalam bidang industri banyak digunakan sebagai bahan aktif pembuatan deterjen sintetis, selain itu juga banyak digunakan Nov 16, 2019 · Linear alkylbenzene sulfonic acid compound (LABSA) is an organic detergent manufactured commercially by sulfonating the linear alkylbenzene (LAB) compound (IHS market 2015). LABs are a major raw material in the manufacture of linear alkylbenzene sulfonate (LAS), the most used surfactant available for use in biodegradable household detergent formulations. and do not cause cell death. Dec 4, 2017 · Linear alkylbenzene sulfonate (LAS) is a common organic pollutant in freshwater environments. 2725 - 2729 View PDF View article View in Scopus Google Scholar surfactant used in the United States. Jan 15, 2022 · The influent COD/N ratio controlled the linear alkylbenzene sulfonate biodegradation and extracellular polymeric substances accumulation in an oxygen-based membrane biofilm reactor Author links open overlay panel Yun Zhou a b , Ran Li b c , Bing Guo b d , Siqing Xia e , Yang Liu b , Bruce E. Emergency Telephone Number (24 hours) Ricca Chemical Company 448 West Fork Drive Arlington, TX 76012 USA 888-467-4222 CHEMTREC (USA Jun 1, 2023 · Linear Alkylbenzene Sulfonate (LAS) is one of the most widely used anionic surfactants, which cannot adjust the viscosity of its aqueous solution with salts. Learn about alkylbenzene sulfonate, a class of anionic surfactants used in detergents and personal-care products. Dec 22, 2015 · A lack of natural water resources and an increase in the demand for fresh potable water has shifted focus to the possible reuse of recycled laundry wastewater water that is considered to be relatively clean. Recently, due to the spread of the Coronavirus and the high global need for detergent, the production of LAB is essential. It is approximately 38% active with a small amount of added hydrotrope, making it clear and fluid at room temperature. Occurrence and behavior of linear alkyl benzene sulfonates, nonylphenol, nonylphenol monophenol and nonylphenol diethoxylates in sewage and sewage-sludge treatment It is the raw material in the production of synthetic sulfonate detergents, which are found in a variety of household products such as soap, shampoo, toothpaste, laundry detergent, etc. ABS, alkylbenzene sulfonates, LABS, linear alkyl benzene sulfonates, DDBS, dodecyl benzene sulfonic acid or sulfonate; LAS (not often used but occurs in old references, not to be confused with paraffin sulfonates or alcohol sulfates). 05) in fish treated with 100 mg/L of detergent (Ariel) with mean value 22. Dec 11, 2022 · General names & Abbreviations. LAS are prepared by sulfonation of linear alkylbenzenes. It is a mixture of closely-related isomers and homologues, each containing an aromatic ring sulfonated at the para position and attached to a linear alkyl chain. , 2021). CAS Numbers: 1322-98-1 Decylbenzene sulfonic acid, sodium salt 25155-30-0 Dodecylbenzene sulfonic acid, sodium salt * Linear Alkylbenzene Sulfonate production process information including block flow diagram (BFD), process flow diagram (PFD) and description of industrial site length distribution of the parent n-alkylbenzene is as follows: C 9 < 1 %, C 10 8–16 %, C 11 26–38 %, C 12 26–38 %, C 13 15–27 %, C 14 < 1 % Weight %, measured by GC Product Range Linear Alkyl Benzene Sulphonate Salts (LAS) Based on a linear C 10-13 alkylbenzene sulphonate, the following salts are available. Dec 1, 2009 · The fate and risk of linear alkylbenzene sulfonates (LAS) in various compartments of the environment have been reviewed. An estimated 6 billion kilograms of anionic detergents are produced annually for domestic markets. , 29 ( 12 ) ( 1995 ) , pp. Aquatic plants play an important role in maintaining the health of water environment in nature. Regarding the recalcitrant nature of sulfonoaromatic compounds, discharging these substances into wastewater collection systems is a real environmental issue. Linear alkylbenzene sulfonate. This is an organic material with its structure made of benzene ring and double bonds. Apr 20, 2021 · Linear alkylbenzene sulfonate (LAS), one of the most widely used synthetic surfactants in laundry detergent industry, is considered a hazardous contaminant in wastewater. 000 centration, hard river water, linear alkyl benzene, linear alkyl benzenesulfonates, relationship of structure and properties in alkyl benzene sulfonates, surface properties. Linear alkylbenzene sulfonate disebut juga dengan nama acid slurry. Linear alkylbenzene is sulfonated to produce linear alkylbenzene sulfonate (LAS), a biodegradable surfactant. However, LABs are more Feb 1, 2022 · Linear alkylbenzene sulfonate (LAS) is an anionic surfactant widely used in detergents and cleaners, both in industrial and household applications. dodecene) using hydrogen fluoride as a catalyst. LAS is regarded as a readily biodegradable product under aerobic conditions in aqueous media and is mostly removed in wastewater treatment plants, but an important fraction (20-25% Jan 1, 1974 · This chapter consolidates the current knowledge of linear alkylbenzene sulfonate (LAS) from the biodegradation and aquatic standpoints. Oct 19, 2023 · Linear alkyl benzene sulfonate (LAS) is one of the main synthetic anionic surfactants used in detergents all over the world for domestic and industrial applications. C11-Linear alkyl benzene sulfonate | C17H28O3S | CID 15593874 - structure, chemical names, physical and chemical properties, classification, patents, literature Dec 28, 2024 · LAS Inf and LAS Eff are influent and effluent linear alkylbenzene sulfonate (LAS) concentrations; Density Biof and Thickness Biof are biofilm density and thickness, respectively; SOPR and SOCR are specific oxygen production and consumption rates, respectively; HRT is hydraulic retention time and DO is dissolved oxygen. Linear Alkylbenzene Sulfonate (LAS) While LAS and Linear Alkylbenzene Sulfonic Acid (LABSA) share similar names and functions, they are distinct chemical compounds. The aim of the present paper is to survey the most important developments and understandings of the chemistry of LAB production and of its physical and environmental OECD SIDS LINEAR ALKYLBENZENE SULFONATE (LAS) UNEP PUBLICATIONS 2 SIDS INITIAL ASSESSMENT REPORT For 20th SIAM Paris, France, 19-21 April, 2005 1. cleaner, toilet bowl laundry detergent laundry detergent, he Mar 16, 2006 · The present invention relates to a process for obtaining a highly soluble linear alkylbenzene sulfonate with an adjustable 2-phenyl isomer content and an extremely low sulfonation color, in which a catalytic system based on highly stable solid catalysts and with a high selectivity for linear monoalkylated compounds is used. Apr 21, 2021 · According to antagonistic activity results, the Gram-positive S. Find Products With This Ingredient; COMMONLY FOUND IN. 400 PT Aktif Indah 70. BIODEGRADATION OF LINEAR ALKYLBENZENE SULFONATE (LAS) AND ALKYLBENZENE SULFONAT (ABS) BY Pseudomonas aeruginosa BACTERIA YEYEN MARYANI,RAHMAYETTI, AISYAH NURUL FATIN, ROHMAWATI Department of Chemical Engineering, Engineering Faculty, University of Sultan Ageng Tirtayasa, Serang – Banten, Indonesia e-mail : y3y3nmaryani@yahoo. Linear alkylbenzene sulfonates (LAS)=Anionic surfactants with molecules characterized by a hydrophobic (apolar) group and a hydrophilic (polar) group. Product Size Container Shelf Life HazMat Info Lots Available List Price Your Price Keyword:'linear alkyl benzene sulfonate' Showing 1-1 of 1 result for " linear alkyl benzene sulfonate " within Products Products Building Blocks Explorer Genes Papers Technical Documents Site Content Chromatograms Page 1 of 7 Title: MATERIALSAFETYDATASHEET(M SDS) LINEAR ALKYL BENZENE SULFONIC ACID (LABSA) Section 1: Chemical Product and Company Identification Product Name: Linear Alkyl Benzene Sulfonic Acid Contact Information: ITTEHAD CHEMICALS LIMITED Sep 15, 2021 · Linear alkylbenzene sulfonate (LAS) is the most widely used anionic surfactant in detergents (Berna et al. Linear Alkylbenzene Handling. Despite the efficient removal of LAS, the dynamics of how it is taken up and the quantitative differentiation of adsorption and biodegradation are largely undefined. A study on LAS biodegradation based on bioelectrochemical treatment and in the form of developing a single-chamber Oct 15, 2005 · Linear alkylbenzene sulfonates (LAS), synthetic anionic surfactants, have been used in household laundry and dishwashing detergents [1]. 1134/S1070427221110094 INTRODUCTION Conventional soaps are sodium salts of fatty acids that result from the alkaline saponification of animal or plant triglycerides. The reactor was filled with polyurethane foam where the sludge from a sanitary sewage treatment was immobilized. LAS is a mixture of closely related isomers and homologues, each containing an aromatic ring sulphonated at the para position and attached to a linear alkyl chain. Source. 6. Dec 1, 2024 · Linear alkylbenzene sulfonate (LAS) is the most commonly used synthetic anionic surfactant in household detergents and personal care products, which contributes to the majority of organics (60–80 %) in greywater (Mungray and Kumar 2009; Kim et al. The chemical composition of LAS indicates that LAS has both a hydrophilic sulfonate head and a hydrophobic alkylbenzene tail. Health issue . Degradation of LAS was observed already at the young Linear alkylbenzene sulfonate (LAS) is a cytotoxic synthetic anionic surfactant widely present in the environment due to its large-scale production and intensive use in the detergency field. All reactors were inoculated with sludge from a UASB reactor treating swine wastewater and were fed with a synthetic substrate sup …. Linear alkylbenzene sulfonic acid (LAS) is a common substance used in the production of detergents in the world. 4 days ago · Pronunciation of linear alkylbenzene sulfonate with 1 audio pronunciation and more for linear alkylbenzene sulfonate. Sep 1, 2020 · Linear alkylbenzene sulfonic acid (ABSA) is a valuable product of inorganic chemistry that is used to obtain linear alkylbenzene sulfonates. Name (OECD name) Linear alkylbenzene sulfonate (LAS) D. Linear Alkylbenzene Sulfonate (LAS) juga relatif mudah didegradasi secara biologi dibanding ABS. 1 Linear Alkyl Benzene Sulfonate . LAS [Sodium linear alkylbenzene sulfonate] 40,000 VNĐ – 2,100,000 VNĐ Las là một bề mặt anion với các phân tử đặc trưng bởi một kị nước và một nhóm ưa nước. Linear alkyl benzene sulfonate (LAS) is a major ingredient in detergents and other household products. LAS has taken the place of branched dodecylbenzene sulfonates. In the present research, we studied the physiological and growth res … The soil was amended with two doses of linear alkylbenzene sulfonate (LAS), here used as a model aromatic sulfonate compound, or with sulfate. , Tokyo, Japan (Cat. A 2-week exposure experiment was designed to investigate the toxi … Sep 7, 2023 · Linear Alkyl Benzene Sulfonic Acid vs. Sự ra đời của LAS [9] An example of a linear alkylbenzene sulfonate (LAS) Linear alkylbenzene sulfonates (LAS) are prepared industrially by the sulfonation of linear alkylbenzenes (LABs), which can themselves be prepared in several ways. Studies have shown that the toxicity of LAS to aquatic plants is directly related to the LAS concentration and depends on the plant species. Alkylbenzene merupakan bahan baku dasar untuk membuat Linear Alkylbenzene . Linear alkylbenzene (LAB) is the precursor to the biodegradable detergent surfactant linear alkylbenzene sulfonate (LAS). 5% by weight linear alkylbenzene, where the product has a Klett color of less than about 8, and where the linear alkylbenzene and the linear alkylbenzene sulfonic acid are derived from reacting benzene and an olefin. Products Available. Linear Alkylbenzene Sulfonate dengan rumus C12H25C6H4-SO3Na suatu senyawa yang dihasilkan dengan mereaksikan antara Linear Alkylbenzene dan oleum di dalam reaktor terbentuklah Linear Alkylbenzene Sulfonate. Bioremediation of LAS by conventional processes such as activated sludge is Kerosene is the raw material of linear paraffi n with high purity, which is fi nally converted to linear olefi ns by dehydrogenation. Two different varieties have been popularized, those with branched alkyl groups and those with linear alkyl groups (see Figure \(\PageIndex{2}\)). 195-07682) as crystalline powder, having the following CAS NUMBER: 25155-30-0, and the formula “C 12 H 25 C 6 H 4 SO 3 Na”. A 2-week exposure experiment was designed to investigate the toxicity of LAS for the submerged plant Chara vulgaris L. Linear alkylbenzene sulfonate (LAS, CAS 68411-30-3) is an anionic surfactant. LINEAR ALKYLBENZENE SULFONATE Khả năng tẩy rửa chịu ảnh hưởng của nhiều yếu tố: bản chất của chất hoạt động bề mặt sử dụng, pH, phụ gia, nhiệt độ… II. Linear Alkylbenzene Sulfonate Standard, 1000 ppm LAS . The development Apr 29, 2020 · Linear alkylbenzene sulfonate (LAS), which is widely used as detergent, is a common toxic pollutant in wastewater. This unspecific ingredient, LINEAR ALKYLBENZENE SULFONATES, can be found in 140 products. . Studies have shown that linear alkylbenzene sulfonate (LAS), a type of omnipresent pollutant, can cause toxic damage to aquatic plants. raxp lrjapuxl ktiem olsn iqlrn dulif vokv gyaq xswd kewvs